.close {
    float: right;
    @include font-size($close-font-size);
    font-weight: $close-font-weight;
    line-height: 1;
    color: $close-color;
    text-shadow: $close-text-shadow;
    opacity: .5;
    // Override <a>'s hover style
    @include hover() {
        color: $close-color;
        text-decoration: none;
    }

    &:not(:disabled):not(.disabled) {
        @include hover-focus() {
            opacity: .75;
        }
    }
}

// Additional properties for button version
// iOS requires the button element instead of an anchor tag.
// If you want the anchor version, it requires `href="#"`.
// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile

// stylelint-disable-next-line selector-no-qualifying-type
button.close {
    padding: 0;
    background-color: transparent;
    border: 0;
    appearance: none;
}

// Future-proof disabling of clicks on `<a>` elements

// stylelint-disable-next-line selector-no-qualifying-type
a.close.disabled {
    pointer-events: none;
}